The RMK-5-571+ from Mini Circuits is a Frequency Multiplier with Input Frequency 70 to 115 MHz, Output Frequency 350 to 575 MHz, Input Power 22 to 24 dBm, Harmonics 2 to 58 dBc, Conversion Loss 21 to 22.5 dB. Tags: Surface Mount. More details for RMK-5-571+ can be seen below.